Verify event

Recorded world event

This is a recorded simulation or world event. Its hash and any Merkle proof check stored bytes. They do not make this event a blockchain transaction.

Event

Simulation CHOG #1585 visited the Market and took a simulated food ration.

Id

4ef4983a-0…434126754ef4983a-01b9-4da2-83e2-31dc43412675Copy

Full value

4ef4983a-01b9-4da2-83e2-31dc43412675

Sequence

806289

Kind

citizen.market_visit

Category

citizen

Source

simulation

Occurred (UTC)

2026-10-28T10:15:19.978243+00:00

Created (UTC)

2026-10-28T10:15:24.17583+00:00

World seconds

74783010

Citizen

d143ca10-6…de78c51bd143ca10-6faf-48c6-afe0-b069de78c51bCopy

Full value

d143ca10-6faf-48c6-afe0-b069de78c51b

Related citizen

—

Building

market

Intent

—

Decision

—

Tick

242687

Chain status

offchain

Integrity class

live

chogos-event-v1
id:4ef4983a-01b9-4da2-83e2-31dc43412675
seq:806289
kind:citizen.market_visit
category:citizen
source:simulation
summary:CHOG #1585 visited the Market and took a simulated food ration.
occurredAt:2026-10-28T10:15:19.978Z
createdAt:2026-10-28T10:15:24.175Z
worldS:74783010
tickSeq:242687
actorCitizenId:d143ca10-6faf-48c6-afe0-b069de78c51b
relatedCitizenId:
buildingId:market
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:d143ca10-6faf-48c6-afe0-b069de78c51b:13944:citizen.market_visit
intentId:
decisionId:
payload:{"action":"shop","activity":"shopping","arrived":true,"buildingName":"Market","durationWorldMinutes":70,"foodTaken":1,"tokenId":"124"}
stateTransition:{}
prevEventHash:0xe2adbd6bb842c806a7b38c27b3ca85ca74d1e9c7a4c5dd26fc1fbfc6b44e1327

Hashes

Offchain hashes stay on this page, in the canonical document, and in the JSON export. They are not explorer objects.

Stored event hash

0xa586b040…b2f870760xa586b040342e8ede5c9785848192023097a6b99ec4ce6b78d6a83648b2f87076Copy

Full value

0xa586b040342e8ede5c9785848192023097a6b99ec4ce6b78d6a83648b2f87076

Recomputed event hash

0xa586b040…b2f870760xa586b040342e8ede5c9785848192023097a6b99ec4ce6b78d6a83648b2f87076Copy

Full value

0xa586b040342e8ede5c9785848192023097a6b99ec4ce6b78d6a83648b2f87076

Previous event hash

0xe2adbd6b…b44e13270xe2adbd6bb842c806a7b38c27b3ca85ca74d1e9c7a4c5dd26fc1fbfc6b44e1327Copy

Full value

0xe2adbd6bb842c806a7b38c27b3ca85ca74d1e9c7a4c5dd26fc1fbfc6b44e1327

Next event hash

0x5df09188…501cc97c0x5df09188820583b92a8a950b17c6fee11f5896a5d01bace1b2a5b311501cc97cCopy

Full value

0x5df09188820583b92a8a950b17c6fee11f5896a5d01bace1b2a5b311501cc97c

Merkle batch id

—

Merkle root

—

Merkle proof

This event is not in a Merkle batch yet.

No inclusion proof is stored for this event yet.

Leaf encoding is bytes32 in an OpenZeppelin standard tree with sortLeaves false. A valid proof matches the supplied root only.

Anchor read

This event has no Merkle batch.

No validated anchor transaction is attached to this batch.

This page reassesses the observation included in the export. It does not open a second RPC from the browser. Repeat getBatch on the recorded contract before treating the root as published. EventAnchor does not check the inclusion proof.

Source

Vercel git commit

045b3fe38d65dfe80d92f37a6772b54aceca4caa

• src/lib/verify/canonical.ts
• src/lib/verify/merkle.ts
• src/lib/verify/chain.ts
• src/lib/verify/anchor.ts
• src/lib/verify/transfer-log.ts
• src/lib/world/transfer.ts
• src/components/verify/event-verifier.tsx
• contracts/src/EventAnchor.sol

Download machine-readable export

• Recompute the SHA-256 of the chogos-event-v1 canonical document from event. Do not trust serverRecomputedHash or any status label.
• Compare that digest to storedHash.
• When previous and next are present, check that the live hash chain links match.
• Verify the OpenZeppelin standard Merkle proof: leaf encoding bytes32, sortLeaves false, against batch.merkleRoot.
• A valid inclusion proof means the leaf matches the supplied root. It does not prove the root was published onchain.
• When anchorObservation is present, repeat eth_chainId, eth_getCode, the transaction receipt, and EventAnchor.getBatch on the recorded chain. The embedded observation is one server read, not a proof by itself.
• EventAnchor stores roots only. It does not verify inclusion and it does not prove the event happened.
• For an nft.transferred row, compare chain 143, the Chog Genesis contract, transaction hash, block, block hash, log index, sender, receiver, and token id with the explorer log. chain_status confirmed is not that comparison. transferLog.matched is true only after a read-only receipt check matched.
• Do not send event data to a third-party hashing site.
• This export is data. Recompute the hash and Merkle proof locally. A matching hash is not proof that the simulation was truthful.
• A privileged database operator can still rewrite history and recompute hashes. An onchain root only detects that after the root was published.
• serverRecomputedHash is a convenience. Compare your own SHA-256 of the canonical document with storedHash.
• Do not send this export to a third-party hashing site.
• The database batch id is a UUID. The onchain batch id is the bytes32 in BatchAnchored. This export does not treat the UUID as that bytes32.